Method of making packing.



l. R. GAMMETER.

METHOD oF MAKING PAcKmG.

APPLICATION FILED NOV. 8. IBIS.

Pamd De@ 25,1917.`

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1.,R.GAMMETER.

METHUD 0F MAKING PACKING..

APPLICATION man Nov. s. lave.

1,251,009. Patnd De@ 25,191?.

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1N VENTOR.

ATTORNE Y.

UNITED STATES PATENT oEEToE.

JOHN B. GAMMETEB, OF AKRON, OHIO, ASSIGNOB TO THE B. F. GOOIDRICH COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

METHOD OF MAKING PACKING.

Specification of Letters Patent.

Patented Dec. 25, 1917.

' Application llled November B, 1916. Serial No. 130,162.

To all 'whom 'it may concern:

Be it known that I, JOHN R. GAMME/ran, av citizen of the United States, residin at Akron, in the county of Summit and tate of Ohio, have invented certain new and use.- ful Improvements in Methods of Making Packing, of which the following is a specification.

This invention relates to the manufacture of.l packing, and especially laminated machineripacking in long lengths from sheets of rub rized fabric 4or other suitable pack- Vingmaterial The method heretofore pursuedhas'been to build up andcure a flat laminated slab and. thenlcut it into strips ,or

` t intention is tosaie time and labor by subvstitutjn'g,the,hollow conicnlor other tubular *form-for the at'form andthus enable the packing-to be more-'readily built'up from theffsh'eets, conveniently. vulcanized and morequickly and easily cut' into strip form.

. Of the accompanying drawings,

L 4- Fi re 1 is a. vertical section showing a suita le form of vulcanizing press and a' laminated cone of packlng material therein.

Fig. 2 is a fragmental cross-section showing the mode of building up the cone of packing-material.

Fi 3 is a side elevation of a portion of a. lat e with a cone' of packing material supported therein and subjected to the cutting operation.

Fig. 44 is an end View of the cone-supportingdrum.

The sheets 10 of rubberized fabric, or alternate sheets of rubber and fabric, or plain rubber or other suitable packing material arefirst wound to the desired thickness or number of layers upon u circular support as represented in Fig. 2, the said support having a slight tapering or conical form. The winding or Wrapping may be done upon the drum 16 shown in Figs. 3 and' 4, and the hollow conical or tubular body of material then slipped olf of the forming drum and placed upon the inner or male member of the press represented in Fig. 1. This press is preferably steamjacketed and the heat serves to vulcanize the rubber in the case of rubber packings, or to set the binding material in the case of other packings such as asbestos treated with a `ons` .Iof` rectangular.' or. other desired gross-sectional' form: The ob]ect of my comprises an inner steam]acketed cone 11 mounted upon a base or support 12, and a mating outer. steam-jacketed. cone 13. held to the base 12 by means of pxvot'ed bolts 14 -andadapted to be raised and lowered by suitable chain hoisting tackle 15. The laminated cone 10* of packing material is represented. in 'position to e vulcanized between the twopress members'. :After viilcanization is complete, the outer press member 18 is lifted out of the way and the cone of vpacking material is lifted oil' 0f the in- .'ner press memberll-and placed uponthe' conical drum or mandrel 16. Said drum is then mounted between centers in a lathe 17 provided with n suitable cutting tool 18 whose carrie e 19 has the usual automatic longitudinal eed, and straight anddia'gonal cross-feeds. Preferably the tail-stock is ofi'- settoward the cutting side so as to bring the longitudinal feed parallel to an elementof the cone on that side. .By properly :rdjusting the' tool and rotating the drum 16,

. the laminated-cone 10* of packing material is cut into a continuous spiral strip of'packing whose section may be either rectangular as shown at 20 in Fig. B, or triangular as shown at 21, or of other suitable shape.

I claim:

1. The method of making packing which consists in forming a hollow conical body of packing material and cutting :L strip of packing circumferentiully therefrom.

2. The mcthod of making packing which consists in forming n hollow cone of packing material, and cutting the sume spirnlly into a continuous strip of packing.

3. The method of making laminated packing which consists in wrapping Sheets of packing material upon a conical support to form a hollow conical body, and cutting said body circuinfercntially into strip i'orn'a.

4. The method of making packing i lxioh consists in forming a tube of plastic pucking material, pressing and curin Said tube in conical form, and cutting tie cured tube spirally into a continuous strip Aorstrips oi' packing.

The method of making laminatedl packing which consists in winding sheets of abric and rubber into the form of a tube, vulcanizing said tube, and cutting a strip of packing spirally therefrom.

G. The method of making laminated rubber packing which consists in building up a hollow cone of packing niaterial with layers of rubber and fnhrie'.'` vulcanizing the same, and cutting it, circumferentially into' packing of the desired width.

7, The method of making laminated rui;- ber packing which consists in Winding sheets of rubber and fabric upon a conical support to form a hollow laminated cone of packing material7 vulcanizing said cone, and cutting it spirally into packing of the desired width and cross-sectional shape.

In testimony whereof I have hereunto set my hand this 28 day of October, 1916.

JOHN R.v GAMMETER. 

